| Disposal Groups, Including Discontinued Operations, Income Statement [Table Text Block] |
| | Year ended December 31, 2016 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ | - | | | $ | 166,090 | | | $ | 166,090 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - | | | | 120,906 | | | | 120,906 | | General and administrative expense | | | 7,966 | | | | 2,148 | | | | 10,114 | | Depreciation and amortization | | | - | | | | 21,121 | | | | 21,121 | | | | | | 7,966 | | | | 144,175 | | | | 152,141 | | | | | | (7,966 | ) | | | 21,915 | | | | 13,949 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Write-off of deferred financing fees | | | - | | | | 2,302 | | | | 2,302 | | | | | | - | | | | 9,929 | | | | 9,929 | | Income (loss) from discontinued operations before gain on disposition and income taxes | | | (7,966 | ) | | | 9,684 | | | | 1,718 | | | | | | - | | | | 167,895 | | | | 167,895 | | (Provision) benefit for income taxes | | | 2,401 | | | | (63,254 | ) | | | (60,853 | ) | Discontinued operations, net of tax | | $ | (5,565 | ) | | $ | 114,325 | | | $ | 108,760 | | | | Year ended December 31, 2015 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ | 291,510 | | | $ | 217,436 | | | $ | 508,946 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 264,293 | | | | 163,211 | | | | 427,504 | | General and administrative expense | | | 14,975 | | | | 2,630 | | | | 17,605 | | | | | | 1,593 | | | | - | | | | 1,593 | | Depreciation and amortization | | | 4,831 | | | | 29,472 | | | | 34,303 | | | | | | 285,692 | | | | 195,313 | | | | 481,005 | | | | | | 5,818 | | | | 22,123 | | | | 27,941 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2,829 | | | | 14,359 | | | | 17,188 | | Income from discontinued operations beforegain on disposition and income taxes | | | 2,989 | | | | 7,764 | | | | 10,753 | | | | | | 123,129 | | | | - | | | | 123,129 | | Provision for income taxes | | | (24,318 | ) | | | (1,693 | ) | | | (26,011 | ) | Discontinued operations, net of tax | | $ | 101,800 | | | $ | 6,071 | | | $ | 107,871 | | | | Year ended December 31, 2014 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ | 344,960 | | | $ | 43,331 | | | $ | 388,291 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 315,008 | | | | 35,185 | | | | 350,193 | | General and administrative expense | | | 19,134 | | | | 421 | | | | 19,555 | | | | | | 6,915 | | | | - | | | | 6,915 | | Depreciation and amortization | | | 6,655 | | | | 5,619 | | | | 12,274 | | | | | | 347,712 | | | | 41,225 | | | | 388,937 | | | | | | (2,752 | ) | | | 2,106 | | | | (646 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1,478 | | | | 2,899 | | | | 4,377 | | Loss from discontinued operations | | | (4,230 | ) | | | (793 | ) | | | (5,023 | ) | | | | | 588 | | | | 199 | | | | 787 | | Discontinued operations, net of tax | | $ | (3,642 | ) | | $ | (594 | ) | | $ | (4,236 | ) |
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| Disposal Groups, Including Discontinued Operations, Balance Sheet [Table Text Block] |
| | | | | | | | | | | | | | Cash and cash equivalents | | $ | 5,014 | | Accounts receivable, net of allowance of $1,208 | | | 21,117 | | Prepaid expenses and other | | | 3,094 | | | | | | 2,986 | | Current assets of discontinued operations held for sale | | $ | 32,211 | | | | | | | | Property and equipment, net | | $ | 11,629 | | | | | | 210,071 | | | | | | 216,387 | | | | | | 3,313 | | Non-current assets of discontinued operations held for sale | | $ | 441,400 | | | | | | | | | | | | | | Current portion of long-term obligations | | | | | | | | $ | 1,988 | | | | | | 13,116 | | Reinsurance liability reserve | | | 745 | | Current liabilities of discontinued operations held for sale | | $ | 15,849 | | | | | | | | Other long-term liabilities | | $ | 2,197 | | | | | | 85,071 | | Non-current liabilities of discontinued operations held for sale | | $ | 87,268 | |
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| Disposal Groups, Including Discontinued Operations, Cash Flow Statement [Table Text Block] |
| | For the year ended December 31, 2016 | | | | | | | | | | | | | | | | | | | | | | | | | | Cash flows from discontinued operating activities: | | | | | | | | | | | | | | Depreciation | | $ | - | | | $ | 3,661 | | | $ | 3,661 | | | Amortization | | | - | | | | 17,460 | | | | 17,460 | | | Stock based compensation | | | - | | | | (18 | ) | | | (18 | ) | | Deferred income taxes | | | - | | | | 52,338 | | | | 52,338 | | | | | | | | | | | | | | | | Cash flows from discontinued investing activities: | | | | | | | | | | | | | | Purchase of property and equipment | | $ | - | | | $ | 9,174 | | | $ | 9,174 | | | | For the year ended December 31, 2015 | | | | | | | | | | | | | | | | | | | | | | | | | | Cash flows from discontinued operating activities: | | | | | | | | | | | | | | Depreciation | | $ | 2,376 | | | $ | 3,370 | | | $ | 5,746 | | | Amortization | | | 2,455 | | | | 26,102 | | | | 28,557 | | | Asset impairment charge | | | 1,593 | | | | - | | | | 1,593 | | | Stock based compensation | | | 7 | | | | 108 | | | | 115 | | | Deferred income taxes | | | (5,680 | ) | | | 730 | | | | (4,950 | ) | | | | | | | | | | | | | | | Cash flows from discontinued investing activities: | | | | | | | | | | | | | | Purchase of property and equipment | | $ | 2,224 | | | $ | 8,079 | | | $ | 10,303 | | | | For the year ended December 31, 2014 | | | | | | | | | | | | | | | | | | | | | | | | | | Cash flows from discontinued operating activities: | | | | | | | | | | | | | | Depreciation | | $ | 3,202 | | | $ | 608 | | | $ | 3,810 | | | Amortization | | | 3,453 | | | | 5,011 | | | | 8,464 | | | Asset impairment charge | | | 6,915 | | | | - | | | | 6,915 | | | Stock based compensation | | | 6 | | | | - | | | | 6 | | | Deferred income taxes | | | (155 | ) | | | 683 | | | | 528 | | | | | | | | | | | | | | | | Cash flows from discontinued investing activities: | | | | | | | | | | | | | | Purchase of property and equipment | | $ | 4,766 | | | $ | 2,115 | | | $ | 6,881 | |
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